Joseph pajeatj



(No Model.)

J. PAJBAU.

TILE.

No. 420,731. Patented Feb. 4v, 1890.

lll/111111117 soY UNITED STATES ATnNT rricn.

JOSEPH PAJEAU, OF OIIICAGO, ILLINOIS.

TILE.

SPECIFICATION forming part of Letters Patent No. 420,731, dated February4, 1890.

Application filed June -10, 1889. Serial No. 313,809. (No model.)

.To all w/wm/ it' may concern:

Be it known that I, JOSEPH PAJEAU, of the city of Chicago, in the countyof Cook and State of Illinois, have invented certain new and usefulImprovements in .Hollow Tile for Arches, of which the following` is aspecification.

My invention relates to tile employed in the constructionof at arches,upon which may be placed flooring, such Iiat arches and iiooring restingthereon constituting the ceiling in the building wherein it is placed;and the purpose of my invention is to obtain a tile of the characternamed, which may be readily placed in position around the tie-rodordinarily employed to connect the girders between which the arch isthrown, and prevent such girders from spreading.

I have illustrated my invention by the drawings accompanying and forminga part of this specification, in which- Figure l is a cross-section ofgirders supporting an arch constructed of my improved tile, acrossLsection of such arch, and an elevation of the tie-rod connectingthe girders. Fig. 2 is a perspective of the tie-tod connecting thegirders, and of one of the tile forming said arch having the tie-rodinserted therein.

As the several tile forming the arch are, so far as relates to myinvention, similar in construction, I have not deemed it necessary toshow in detail each of the tile forming the arch.

Like letters refer to like parts throughout the several views.

A A are the tile forming the arch.

A is a cut extending along the sides of the tile about midway of andparallel to the upper and lower edges of the tile.

A2 is a portion of the side wall of the tile broken away, in the mannerhereinafter described, to permit the placing of the tile around thetie-rod.

a a are connecting-partitions in the tile.

B is the girder-protecting tile.

C is the girder, and D is the tie-rod connecting the girders C C.

The cut or groove A is formed in the til before the baking thereof bythe insertion of a knife or other suitable instrument penetratingasufficient distance into the material composing the tile, so that whenthe tile has been baked the breaking of the tile along the line of suchcut will be greatly facilitated. Partitions a a, parallel with the upperand lower face of said tile, extend the whole length of the tile, andinthe effort to break open the tile upon the line of the cut or grooveA', as described, if the line of fracture extends to one or the otherside of such cut A it will be limited by these partitions a a at theirpoint of junction with the side walls of the tile.

In the laying of an arch formed of my tile the same may be-placedtherein in the ordinary manner, except at the point in the arch wherethe tie-rod D comes. In laying the tile in the arch around such tie-rodthe tile is broken open or fractured, as nearly as may be, upon the lineA, by a hammer or other suitable instrument, the line of fracture being,as stated, determined by groove or cut A and partition-walls a a. Afterthe tile has been broken open asufiicient amount or quantity of the sidewall of the tile is broken away to permit the tie-rod D to-pass throughthe tile in the 'proper place when the tile is placed in position in thearch. The lower part of the tile may then be placed underneath thetie-rod, together with suitable cement or mortar, and the upper partplaced in position upon said lower part in a proper manner and withsuitable cement or mortar. In this manner I am enabled to construct amuch stronger arch at the part thereof within which the tie-rodconnecting the girders is placed, and at all other points in said arch Iobtain substantially the same results as by the tile heretofore in usefor such purpose.

I am aware that partitions ,similar to the partitions a a have beenheretofore employed in the making of tile adapted to form an element ina floor-arch; and

What I claim, and desire to secure by Letters Patent, is-

A hollow tile open at the ends thereof, having an upper and an underwall in substantially parallel planes, converging side walls,intermediate walls extending from one to the other of the side walls andin a plane paral- IOO lel to the upper and under Walls, and groovesinfiuenee of such intermediate Walls and the partially severing the sidewalls of the tile partial severil'ig` of the Side Walls,substanlongitudinally the entire length thereof and tially as described.

between the intermediate Walls, whereby such JOSEPH PAJEAU. 5 tile isadapted to form a member in a fiat fitnessesz arch and to be broken openlongitudinally in CHARLES T. BROWN,

a line limited and controlled by the combined A. Z. BAUM.

